not to dissuade you from filing a dispute, but it might not be as bad as you think. The ends of the lead screws aren't supported on mine - one of them is free in the air, the other goes into a hole in the casting. I tried putting a bearing in there but it didn't make any difference. Also, for the lower screw, the lead screw nut is removeable (has to be to get the vise apart) and it's tricky getting it in straight so that the screw runs freely. Seems like a degree off in either direction relative to the screw makes it bind as if it's bent. Gibs you can set yourself, machining marks come with the territory and extra paint should be kept for when it falls off somewhere else
I don't know how much you paid and it might be enough that you expected it to work out of the box, but it's best to regard it as a collection of castings from which you can make a nice tool out of. It's the view I took and alot of hours later I have what I think is a really nice vise.